APPENDIX 2 : MEASURES OF UNDERLYING TREND INFLATION
Table 2: Measures of underlying trend inflation, Index numbers (a)
| | | 16th series seasonal adjustment methodology |
| | | |
Period | All groups CPI
(b) | All groups CPI, seasonally adjusted
(b) | Trimmed mean
(c) | Weighted median
(c) |
INDEX NUMBERS |
2007 |
| June | 157.5 | 157.4 | 114.7 | 115.2 |
September | 158.6 | 158.3 | 115.7 | 116.3 |
December | 160.1 | 160.3 | 117.1 | 117.8 |
2008 |
| March | 162.2 | 162.4 | 118.6 | 119.3 |
June | 164.6 | 164.5 | 119.9 | 120.5 |
September | 166.5 | 166.1 | 121.3 | 122.0 |
December | 166.0 | 166.2 | 122.1 | 123.1 |
2009 |
| March | 166.2 | 166.2 | 123.3 | 124.5 |
June | 167.0 | 166.9 | 124.1 | 125.5 |
September | 168.6 | 168.2 | 125.1 | 126.7 |
December | 169.5 | 169.7 | 126.1 | 127.8 |
2010 |
| March | 171.0 | 171.1 | 127.1 | 128.9 |
June | 172.1 | 172.0 | 127.6 | 129.3 |
September | 173.3 | 172.9 | 128.3 | 130.0 |
December | 174.0 | 174.3 | 128.8 | 130.9 |
2011 |
| March | 176.7 | 176.7 | 129.9 | 132.0 |
| June | 178.3 | 178.3 | 130.8 | 132.7 |
|
Note: | (a) Weighted average of eight capital cities. |
| (b) Base: 1989-90 = 100.0. |
| (c) Base: June quarter 2002 = 100.0. |
Table 3: Measures of underlying trend inflation, Percentage changes (a)
Period | All groups CPI | All groups CPI, seasonally adjusted | 16th series seasonal
adjustment methodology | 15th series seasonal
adjustment methodology |
| |
Trimmed mean | Weighted median | Trimmed mean | Weighted median |
|
PERCENTAGE CHANGE (from corresponding quarter of previous year) |
2007 | | |
| June | 2.1 | 2.1 | 2.8 | 2.8 | 2.7 | 2.8 |
September | 1.9 | 1.9 | 2.9 | 2.9 | 2.9 | 3.0 |
December | 3.0 | 3.0 | 3.5 | 3.8 | 3.4 | 3.7 |
2008 | | |
| March | 4.2 | 4.3 | 4.3 | 4.6 | 4.1 | 4.3 |
June | 4.5 | 4.5 | 4.5 | 4.6 | 4.3 | 4.4 |
September | 5.0 | 4.9 | 4.8 | 4.9 | 4.7 | 4.8 |
December | 3.7 | 3.7 | 4.3 | 4.5 | 4.2 | 4.5 |
2009 | | |
| March | 2.5 | 2.3 | 4.0 | 4.4 | 4.0 | 4.4 |
June | 1.5 | 1.5 | 3.5 | 4.1 | 3.6 | 4.2 |
September | 1.3 | 1.3 | 3.1 | 3.9 | 3.2 | 3.7 |
December | 2.1 | 2.1 | 3.3 | 3.8 | 3.2 | 3.5 |
2010 | | |
| March | 2.9 | 2.9 | 3.1 | 3.5 | 3.0 | 3.1 |
June | 3.1 | 3.1 | 2.8 | 3.0 | 2.6 | 2.7 |
September | 2.8 | 2.8 | 2.6 | 2.6 | 2.4 | 2.3 |
December | 2.7 | 2.7 | 2.1 | 2.4 | 2.2 | 2.2 |
2011 | | |
| March | 3.3 | 3.3 | 2.2 | 2.4 | 2.3 | 2.2 |
| June | 3.6 | 3.7 | 2.5 | 2.6 | 2.7 | 2.7 |
|
|
PERCENTAGE CHANGE (from previous quarter) |
2007 |
| June | 1.2 | 1.1 | 0.9 | 1.0 | 0.9 | 0.9 |
September | 0.7 | 0.6 | 0.9 | 1.0 | 0.8 | 0.9 |
December | 0.9 | 1.3 | 1.2 | 1.3 | 1.1 | 1.1 |
2008 | | |
| March | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.3 |
June | 1.5 | 1.3 | 1.1 | 1.0 | 1.2 | 1.0 |
September | 1.2 | 1.0 | 1.2 | 1.2 | 1.1 | 1.2 |
December | -0.3 | 0.1 | 0.7 | 0.9 | 0.6 | 0.9 |
2009 | | |
| March | 0.1 | 0.0 | 1.0 | 1.1 | 0.9 | 1.2 |
June | 0.5 | 0.4 | 0.6 | 0.8 | 0.9 | 0.8 |
September | 1.0 | 0.8 | 0.8 | 1.0 | 0.7 | 0.8 |
December | 0.5 | 0.9 | 0.8 | 0.9 | 0.6 | 0.6 |
2010 | | |
| March | 0.9 | 0.8 | 0.8 | 0.9 | 0.8 | 0.8 |
June | 0.6 | 0.5 | 0.4 | 0.3 | 0.5 | 0.5 |
September | 0.7 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
December | 0.4 | 0.8 | 0.4 | 0.7 | 0.3 | 0.5 |
2011 | | |
| March | 1.6 | 1.4 | 0.9 | 0.8 | 0.9 | 0.8 |
| June | 0.9 | 0.9 | 0.7 | 0.5 | 0.9 | 0.9 |
|
|
Note: (a) Weighted average of eight capital cities. |